Mint (facility)

A mint is an industrial facility which manufactures coins that can be used in currency.

The history of mints correlates closely with the history of coins. In the beginning, hammered coinage or cast coinage were the chief means of coin minting, with resulting production runs numbering as little as the hundreds or thousands. In modern mints, coin dies are manufactured in large numbers and planchets are made into milled coins by the billions.

With the mass production of currency, the production cost is weighed when minting coins. For example, it costs the United States Mint much less than 25 cents to make a quarter (a 25 cent coin), and the difference in production cost and face value (called seigniorage) helps fund the minting body.

The earliest metallic money did not consist of coins, but of unminted metal in the form of rings and other ornaments or of weapons, which were used for thousands of years by the Egyptian, Chaldean and Assyrian empires. Metals were well suited to represent wealth, owing to their great intrinsic value and their durability, divisibility and rarity. The best metals for coinage are gold, silver, platinum, copper, tin, nickel, aluminum, zinc, iron, and their alloys; certain alloys of gold, silver, copper and nickel have the best combination of the required qualities.

The first mint was likely established in Lydia in the 7th century BC, for coining gold, silver and electrum. The Lydian innovation of manufacturing coins under the authority of the state spread to neighboring Greece, where a number of city-states operated their own mints. Some of the earliest Greek mints were within city-states on Greek islands such as Crete; a mint existed at the ancient city of Cydonia on Crete at least as early as the fifth century BC.

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